6618748738 has 16 divisors (see below), whose sum is σ = 11538740160. Its totient is φ = 2788528176.

The previous prime is 6618748733. The next prime is 6618748853. The reversal of 6618748738 is 8378478166.

It is not an unprimeable number, because it can be changed into a prime (6618748733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4005681 + ... + 4007332.

It is an arithmetic number, because the mean of its divisors is an integer number (721171260).

Almost surely, 2^6618748738 is an apocalyptic number.

6618748738 is a deficient number, since it is larger than the sum of its proper divisors (4919991422).

6618748738 is a wasteful number, since it uses less digits than its factorization.

6618748738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013081.

The product of its digits is 10838016, while the sum is 58.

The square root of 6618748738 is about 81355.6927203008. The cubic root of 6618748738 is about 1877.5519609875.

The spelling of 6618748738 in words is "six billion, six hundred eighteen million, seven hundred forty-eight thousand, seven hundred thirty-eight".